# set1 = set([1, 2, 3])
# set2 = {1, 2, 3, 4}
# print(set1)
# print(set2)
#
# print("交集：", set1 & set2) # 交集
# print("交集：", set1 or set2) # 交集
# print("并集：", set1 | set2)  # 并集
# print("并集：", set1 and set2)  # 并集
#
# a = 'a'
# print(type(a))
#
# a=[1, 1, 2, 4, 2, 5, 6]
# # a.pop(0, 2)
# #
# dict3 = {[1, 2, 3]: 'uestc'}
# print(dict3)
# dict4 = {(1, 2, 3): 'uestc'}
# print(dict4)

print((1, 2, 3) * 2)